*{ margin :0 auto;}
body {
	background-color: #fff;
	font:12px Simsun;
	margin:0;
	padding: 0;
	width:390px;
	height:539px;
}
header {
	height: 44px;
	background-color: #f6f7f9;
}
header .logo{
	background: url(../img/logo.png) no-repeat;
	width:200px;
	height:40px;
	float:left;
	margin: 5px 5px 0;
}